At the moment sadly the game does not have a final end flag/state, we do have one in mind that we are going to implement after the jam/voting is done. Also with some UI additions so you know how many upgrades are left and stuff like that.
With the inaccessible areas, there were some planned upgrades/bosses we had to leave out at the moment, so they can't be reached yet (i think)! but hopefully soon :D
Yeah, I forgot to add a way to contact me, it's MinorLegato#1011 on discord : ).
The chunks were more of a design choice to separate the biomes/background images. In the beginning, I also thought about deactivating stuff outside of the current chunks, but as you said it was not necessary for any performance reasons. there is around 800-900 active entities in the beginning and my 6-year-old dying laptop was running it alright, I might change that system in the future though. But I do cull everything outside the view of the camera before rendering.
For the minimap, I marked the tiles that have been in the line of sight of the player with a flag, and then only rendered those tiles in the minimap. but you could keep track of that in a completely different structure if you wanted to. the line of sight algorithm I used is just a line trace between the player and close-by tiles and detecting if I intersect anything.
Feel free to tell me to elaborate on anything, on here or discord! :D
Thank you very much, that means a lot :D! I do agree with all your points. Most of the jumping things you can do were accidental, but I got so used to it during testing I could not bring myself to prevent it, It does need a lot of tweaking together with the map though.
With the programming stuff, feel free to ask me anything, and I will do my best to answer. : )
Oh, thank you very much :D! if you have all four items/upgrades I'm not sure there will be much more at this moment. It saves automatically, so if you exit and restart it should continue where you left off unless I messed something up!
Thanks for playing and the feedback :D! Yeah I really should have added a message of the no ending part in game, and the control scheme. I did add it on the game page until voting is done : )
Haha nice! Did not have time to add a real end before the jam deadline. So it just infinite, with more zombies per level. But I plan to update it after the jam is over. : )